1: (6 11 13)

(0 19 3)(1 13 7 5 11)(2 8 4)(6)(9 14 12)(10 17 15)(16 20 18)

2: (5 11 7)

(0 19 3)(1 13 7)(2 8 4)(5)(6)(9 14 12)(10 17 15)(11)(16 20 18)

3: (9 14 12)

(0 19 3)(1 13 7)(2 8 4)(5)(6)(9)(10 17 15)(11)(12)(14)(16 20 18)

4: (1 13 7)

(0 19 3)(1)(2 8 4)(5)(6)(7)(9)(10 17 15)(11)(12)(13)(14)(16 20 18)